S
M
T
W
T
F
S
26
85°
65°
27
85°
70°
28
82°
70°
29
85°
70°
30
78°
68°
31
87°
67°
1
88°
69°
2
83°
74°
3
83°
68°
4
86°
69°
5
83°
71°
6
91°
74°
7
91°
73°
8
88°
72°
9
90°
73°
10
91°
69°
11
87°
68°
12
83°
66°
13
83°
67°
14
81°
66°
15
82°
67°
16
80°
63°
17
86°
66°
18
84°
64°
19
83°
70°
20
85°
66°
21
83°
63°
22
82°
67°
23
87°
70°
24
88°
70°
25
87°
69°
26
85°
69°
27
79°
68°
28
79°
69°
29
84°
67°
30
85°
68°
31
85°
68°
1
84°
63°
2
77°
61°
3
76°
61°
4
76°
60°
5
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Roseville
Roseville's August 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 60° and 74°. The average high for August is 84° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Roseville. See also: September | October | November.
